Help on information on Omega ME 131.0019

Hello all,

I have an Omega Geneve from 1962 (https://www.omegawatches.com/en-us/watch-omega-geneve-omega-me-131-0019). Or so it seems.. this Omega has a 601 movement. My omega however, has a 286 movement. I have had it serviced by a licensed Omega watchmaker recently. He told me that that the 286 movement was manufactured between 1963-1966. As seen on the pictures the reference number on the movement 19785051 which matches with the reference number on the caseback. The movement and the caseback are thus corresponding, but the dial is supposed to be on a 601 movement. According to my watchmaker, everything is original Omega and he said that in the last sixty years some things could have been changed around.

My question now is, which dial should have originally been on my watch? Could a customer choose a dial back then or was the original dial replaced with this one at some point of time? What are your thoughts on the dial mix-up?

Also, this watch was made during the time where the seconds hand was moved from the 6 position to be a center seconds hand. This watch could have been from a batch where the movements where modified so that did not need to make an entirely new batch. The case should be a little bit higher when this is such a movement. What do you think, is this such a movement?

I am looking forward to hearing what you guys think about the watch and my questions!

Have a nice day you all!

Thanks for your reaction! I can't open the case myself, but my watchmaker confirmed that the numbers of the movement and caseback corresponded. They are thus matching! I was wondering if a customers could chose different dial styles back then. Very interesting!